【#每日跟讀單元 792】小行星撞擊可能解凍地球為生命帶來契機
摘要:
Researchers have determined that the 70km-wide Yarrabubba crater in Australia formed when an asteroid struck Earth just over 2.2 billion years ago. The collision occurred at a time when the planet was believed to have been encased in ice and the impact may have driven climate warming that led to a global thaw.
研究人員近日確定，寬達七十公里的澳洲亞拉布巴隕石坑，是在二十二億年前，因為一顆小行星撞擊地球而形成。這場撞擊發生在科學家認為地球被冰層包覆的時期，而當時的撞擊可能促使氣候暖化，進一步導致全球解凍。
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